Browsing by Subject "Microstructure"
Now showing items 1-20 of 116
-
3D imaging techniques for characterising microcracks in cement-based materials
(2021-02)
Article
Open AccessConcrete inherently contains pores and microcracks that can adversely impact its mechanical properties and long-term durability. However, characterising microcracks is difficult due to their complex, multiscale and ... -
Advanced characterization techniques in cemented carbides
(Universitat Politècnica de Catalunya, 2024-02-22)
Master thesis
Open AccessLos carburos cementados son materiales formados por granos de carburo y una fase aglutinante. El carburo cementado más conocido es el carburo de wolframio combinado con una fase aglutinante de cobalto WC-Co, pero los ... -
Advanced overview of bacterial nanocellulose manufacturing for novel applications. Analysis of biosynthesis, chemical treatments, processing, and properties
(Universitat Politècnica de Catalunya, 2022-10-25)
Master thesis
Open AccessThe manipulation, assembly, and control of matter at the nanometer scale enable the fabrication of nanomaterials that could revolutionize the industry and impact our society. Various bacterial species such as K. xylinus ... -
An investigation of the thermal stability of a Mg-Dy alloy after processing by high-pressure torsion
(2019-05)
Article
Open AccessAn Mg-0.41Dy (wt%) alloy was successfully processed by high-pressure tension (HPT) through 5 turns at room temperature. The evolution of the recrystallization microstructure and the texture and mechanical properties of the ... -
Austenite carbon enrichment and decomposition during quenching and tempering of high silicon high carbon bearing steel
(2023-02)
Article
Restricted access - publisher's policyThe addition of Si to steels is a well stablished method to delay cementite precipitation, allowing for carbon partitioning from martensite to retained austenite during tempering. It has been argued that carbon enrichment ... -
Caracterización de ABS microcelular obtenido mediante moldeo por inyección con espumación física
(Universitat Politècnica de Catalunya, 2015-01)
Master thesis (pre-Bologna period)
Open AccessEl proyecto tiene como objetivo definir la ventana de proceso de inyección para microespumación MuCell® de probetas de ABS en dos niveles de reducción de peso (10% y 17%), determinar una metodología de análisis de ... -
Caracterización microestructural de un modelo sintético de hueso
(Universitat Politècnica de Catalunya, 2011-02)
Master thesis (pre-Bologna period)
Open AccessEn este PFC se ha caracterizado la microestructura de un modelo sintético de hueso trabecular. Se trata de unas espumas comerciales rígidas de poliuretano que ofrecen propiedades más uniformes que las de un hueso natural ... -
Characterization and optimization of Cu-Al2O3 nanocomposites synthesized via high energy planetary milling: a morphological and structural study
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-22)
Article
Open AccessThis study examines the synthesis and characterization of a copper–alumina nanocomposite powder. Mechanical milling is employed to synthesize the powder, and a holistic analysis is conducted to evaluate its morphological ... -
Combinatorial investigation of Al–Cu intermetallics using small-scale mechanical testing
(2020-05-05)
Article
Open AccessIn the past two decades, small-scale mechanical testing has become ubiquitous for mechanical measurements, offering new opportunities to quantitatively probe the mechanical behavior of materials. In this study, we applied ... -
Compacted bentonite hydro-mechanical modelling when interaggregate porosity tends to zero
(Springer, 2023-05)
Article
Open AccessA formulation is proposed for reproducing the hydro-mechanical behaviour of compacted bentonites as interaggregate porosity becomes negligible. In that case, the model assumes the bentonite deformability to be controlled ... -
Comportamiento y propiedades de las fibras de polilactida (PLA) durante su procesado y uso
(Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa. Universitat Politècnica de Catalunya (UPC), 2010)
Article
Open AccessDurante los últimos años los investigadores involucrados en el proyecto “Microestructura, caracterización, propiedades y aplicaciones de las fibras de polilactida” subvencionado por el Ministerio de Ciencia e Innovación ... -
Composition, microstructure and corrosion mechanisms of Catalan Modernist enamelled glass
(Elsevier, 2021-02)
Article
Open AccessThe materials, painting techniques and conservation state of the enamelled stain glass of the Catalan Modernist workshops operating in Barcelona are studied. It is known for its creativity and artistic value where textured, ... -
Contribution to the study of PLA/sisal biocomposites behaviour under hydrothermal degrading conditions
(Universitat Politècnica de Catalunya, 2013-07)
Master thesis
Open AccessA thorough understanding of the influence of the addition of natural fibers on the water absorption and solubility of bio-based composites is of importance in tailoring its performance in a wet environment. In this study, ... -
Corrosion behavior and microstructural characterization of friction stir welded API X70 steel
(2021-08)
Article
Open AccessFriction stir welding (FSW) is an excellent alternative process used in pipelines circumferential welds due to fusion welded joint low corrosion resistance. This study describes the corrosion resistance as a function of ... -
Crystallization of triethyl-citrate-plasticized poly(lactic acid) induced by chitin nanocrystals
(Wiley, 2019-01-01)
Article
Open AccessThe aim of this study was to gain a better understanding of the crystallization behavior of triethyl-citrate-plasticized poly(lactic acid) (PLA–TEC) in the presence of chitin nanocrystals (ChNCs). The isothermal crystallization ... -
Desarrollo del ensayo del tiempo crítico de disolución para la fibras de poliactida
(2007)
Article
Open AccessEl objetivo de este trabajo es la optimización del ensayo físico-químico del tiempo crítico de disolución (TCD) para la caracterización de la estructura fina de fibras de polilactida (PLA). El estudio se realiza sobre un ... -
Development of the PMSM process to obtain alloys of aluminium with globular microstructure
(Universitat Politècnica de Catalunya, 2018-07-11)
Bachelor thesis
Restricted access - confidentiality agreement -
Discussion on the separation of macropores and micropores in a compacted expansive clay
(Institution of Civil Engineers (ICE), 2020-09)
Article
Open AccessThe behaviour of clayey soils is strongly correlated to their microstructure and evolution thereof. Microstructural investigations have contributed to understanding soil behaviour and have supported the development of ... -
Diseño de una tecnología de lingotes de Rheocasting
(Universitat Politècnica de Catalunya, 2010-06-28)
Master thesis (pre-Bologna period)
Open Access
Covenantee: Centre de Disseny d’Aliatges Lleugers i Tractaments de SuperfíciesUna de las ventajas que presenta el procesado en estado semi-sólido es una baja porosidad por contracción y por gas atrapado, característica que lo hace especialmente adecuado para la fabricación de componentes con espesores ... -
Dynamic deformation response of Al-Mg and Al-Mg/B4C composite at elevated temperatures
(2018-01-17)
Article
Open AccessThe dynamic deformations at high temperatures of Al-3 wt%Mg alloy and Al-3 wt%Mg/B4C composites with different volume fractions and particle sizes were studied using a dilatometer deformation instrument and a split Hopkinson ...
